16 Aug
2012
16 Aug
'12
11:14 a.m.
This is part of why I'm not a fan of (.:) in the first place, but trying to generalize through Category doesn't offer anything here.
Sent from my iPad
On Aug 16, 2012, at 7:16 AM, Twan van Laarhoven
On 15/08/12 19:02, Edward Kmett wrote:
I'm not a huge fan of (.:), but you insist on adding it, please generalize it to fmap.fmap.
(.:) :: (Functor f, Functor g) => (a -> b) -> f (g a) -> f (g b)
This subsumes the other use case.
For the love of Categories, please don't go down this road. fmap is not the proper generalization of (.).
Twan
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